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Question

PH4+ (aq) + H2O(ℓ) <-> PH3(aq) + H3O+(aq)

Which of the following statements is/are true?:

1) The reaction could be classified as a neutralization reaction under the Bronsted-Lowry and Arrhenius acid/base theories, but not under the Lewis acid/base theory.

2) In this reaction, PH4+is a Lewis acid and H2O is a Lewis base

3) PH3 is the conjuage acid of PH4+.

4) The reaction could be classified as a neutralization reaction under the Lewis and Bronsted-Lowry acid/base theories, but not under the Arrhenius acid/base theory.

5) H2O could be classified as a base under all three acid/base theories (it does not have to act as a base under all three theories in this particular reaction for the statement to be true)

6) The reaction involves a proton transfer, so it must be a Lewis neutralization.

7) The reaction involves the formation of a coordinate covalent bond, so it must be a Lewis neutralization.

Answer 1

2, 4, and 5 are true. I'm not sure about 7, but I think it's true, too.